standard electrical
troubleshooting.
Assumption:
Internal AFDD error
► Replace the AFDD. Switch off load.
Check the power supply
voltage and/or connection
to the AFDD.AFDD troubleshooting
Handle ON.
Handle OFF.
02 Hager LTD, Hortonwood 50,Telford-TF1 7FT, United Kingdom
.
Voltage ok.
Voltage between
216V (-6%) and
253V (+10%)
Measure voltage of
device.
AFDD manually
tripped
Yellow flag absence LED blinking RED/GREEN
LED blinking RED/GREEN
Overload
Do standard electrical
troubleshooting and check
the appearance short-
circuit overload.
LED OFF.
LED steady YELLOW
LED steady RED
Assumption:
Residual current fault
0Only for RCBO-AFDD
1.
LED blinking YELLOW
03 Standard electrical troubleshooting
Handle OFF.
2.
Yellow flag presence
Assumption:
Overvoltage
Check the electrical
installation and/or the
power supply.
H Contact the Technical
support.
T
Voltage below
216V above 253V
Replace the AFDD
